Add DM conversations mode similar to upstream

app/javascript/flavours/glitch/features/direct_timeline/components/conversation.js

@@ -0,0 +1,64 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import StatusContainer from 'flavours/glitch/containers/status_container';
+
+export default class Conversation extends ImmutablePureComponent {
+
+  static contextTypes = {
+    router: PropTypes.object,
+  };
+
+  static propTypes = {
+    conversationId: PropTypes.string.isRequired,
+    accounts: ImmutablePropTypes.list.isRequired,
+    lastStatusId: PropTypes.string,
+    unread:PropTypes.bool.isRequired,
+    onMoveUp: PropTypes.func,
+    onMoveDown: PropTypes.func,
+    markRead: PropTypes.func.isRequired,
+  };
+
+  handleClick = () => {
+    if (!this.context.router) {
+      return;
+    }
+
+    const { lastStatusId, unread, markRead } = this.props;
+
+    if (unread) {
+      markRead();
+    }
+
+    this.context.router.history.push(`/statuses/${lastStatusId}`);
+  }
+
+  handleHotkeyMoveUp = () => {
+    this.props.onMoveUp(this.props.conversationId);
+  }
+
+  handleHotkeyMoveDown = () => {
+    this.props.onMoveDown(this.props.conversationId);
+  }
+
+  render () {
+    const { accounts, lastStatusId, unread } = this.props;
+
+    if (lastStatusId === null) {
+      return null;
+    }
+
+    return (
+      <StatusContainer
+        id={lastStatusId}
+        unread={unread}
+        otherAccounts={accounts}
+        onMoveUp={this.handleHotkeyMoveUp}
+        onMoveDown={this.handleHotkeyMoveDown}
+        onClick={this.handleClick}
+      />
+    );
+  }
+
+}